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Web Accessibility Checker for Cross-Functional Teams

Learn how a web accessibility checker can support cross-functional checks: PMs, design, QA, engineering, content, and operations can inspect local builds, staging pages, authenticated screens, interactive states, WCAG, ARIA, keyboard access, contrast, AI semantic quality, and PDF structure signals.

Why use a browser-based accessibility checker?

Many accessibility issues only appear in a real browser state: authenticated screens, form flows, interactive components, local builds, or staging environments. DevCheck keeps the check inside your browser.


  • Check local and staging pages

    Run checks before a page is public without sending the URL to an external scanner.

  • Inspect authenticated and interactive states

    Check user flows, form states, dialogs, and dynamic content after they appear in the browser.

  • Locate elements that need fixing

    Use axe-core to find common issues and map results back to page elements for faster fixes and re-tests.

  • Add visual context checks

    Use color vision, text spacing, visual field loss, presbyopia, myopia, and cataract simulations to review readability.

  • Add AI semantic quality checks

    Review link purpose, language marking, and image alt text quality, including suggested alt text improvements, to cover content context that rule-based tools often cannot judge.

How to check a webpage with DevCheck

The workflow stays inside the browser, so the page does not need to be exposed to an external URL scanner.

  1. Step 1

    Install the Chrome extension.

  2. Step 2

    Open the public page, local build, staging page, or authenticated flow you want to inspect.

  3. Step 3

    Run the Axe-Core A11Y Test.

  4. Step 4

    Review issue types, severity, and affected elements.

  5. Step 5

    Use simulation modes or AI Semantic Check to review readability, interaction contexts, image alt suggestions, and content-description quality, then fix and re-test.


Install Accesserty DevCheckView the DevCheck product page

Accessibility checkers cannot replace a complete manual audit

DevCheck helps teams find common machine-detectable issues faster, but automated checks cannot certify full WCAG, ADA, or legal compliance. Formal review still requires manual inspection, keyboard testing, assistive technology testing, and contextual judgment.

Who should use this web accessibility checker?

  • Frontend developers

    Find common accessibility issues while building UI, forms, components, and interactive flows.

  • QA and testing teams

    Add accessibility checks to pre-release and regression testing workflows.

  • PMs, content, and operations roles

    Run a first check when something looks risky, including page states, use contexts, and PDF structure signals.

  • Design and product teams

    Review color, readability, visual conditions, and potential interaction difficulty during design review.

Frequently asked questions

Is Accesserty DevCheck a web accessibility checker?

Yes. DevCheck is a browser-based accessibility checker for cross-functional teams checking public pages, local builds, staging pages, authenticated views, AI semantic quality, and PDF structure signals.

How is it different from an online URL accessibility checker?

Online URL checkers are useful for public pages. DevCheck runs in your browser, making it better suited for local development, staging, authenticated flows, and interactive states.

Can DevCheck test localhost or staging environments?

Yes. Because DevCheck runs in the browser, it is suited for localhost, staging, internal test pages, and pages that are not public yet.

Can DevCheck check login-only pages?

Yes. If you can open the state in your browser, you can run DevCheck there. This is a key difference from many online URL checkers.